Lock.



J. D. KNEBDLER, LOCK.

, A PPLITION FILED DBO. 29,1908. 917,615. Patented Apr. 6, 1909.

2 SHEETS-SHEET 2.

"llllllmvv 'LD WIT/VESSES UNITED STATES PATENT oE'EroEl JonN BEAMvKNEEDLER, or sioux crrY, 1owA,AssIGNoR or ONE-HALTO BUEL CQUQH.

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Loox.

Specication of Letters Patent.

Patented April 6, 1909.

4that class adapted" to be employed for locking the doorsl of boxcars orthe like and my object is to provide a latch which is adapted to becarried by the door and swing into engagement with a, keeper carried bythe car body.

'A vfurther object is to provide means for covering the opening in thekeeper after the latch has passed into engagement with the same.

A further object is to provide means for removably securing the latch tothe car door and a still further object is to provide means y a seal maybe attached to parts of the loc Other objects and advantages will behereinafter referred to and more particularly 30 :pointed out in theclaims.

In the accompanying drawings forming part of this application, Figure lis a detail side elevation of a box car showing my improved lock a liedto use thereon. Fig. 2 is an enlargedp o -tional viewon an enlargedscale, as seen on line 3-3, Fig. 1. Fig. 4 is a detall perspective-viewof the latch removed from itsfasl view of the parts employed for catesthe car, which may be constructed in the usual or any preferred mannerwhich car body is provided in 's Lside wall o ening2, lover which isadapted, to extend t e-usual or any preferred form' of door 3. The dooris provided on its upper edge with suitable hangers 4, said hangershaving lsheaves 5 thereon, which are adapted to engage a track oi theside of the car body, said track being of sufficient length to permitetail sectional'view, as seen Aon line 2 2, Fig.y 1. Fig. 3 is avertical sec-v with an f the door to travel a suilicient distance toclear the opening 2 in thecar body.

The door 3 is limited in its movement in one direction, or when the door3 is disposed over the opening 2 by means of sto s 7, while the door isheld against outwar swinging movement While being moved longitudinallyof the track by means of guide members 8,

which guide members are secured in any preferred manner to the car body1 below the opening 2. A

After the door has been moved to cover the opening 2, I have providedmeans to securely fasten the door in its closed position and preventmovement of the same in any direction, the locking device comprising alatch 9, one end of which is pivotally mounted on a stem 10 of a stra11, said strap 11 being in turn secured to t e door 3 in any preferredmanner, as by introducing'bolts or the like 12 throu h openings'13 inthe strap and through thea jacent portion of the door.

The latch 9 .is referably rectangular in general outline an is ofsuficient length to extend beyond the inner. face of the door .when thelatchl is being employed for locking the door in its closed position,the extreme inner end ofthe latch being rovided with adapted to enter aslot 15 in theA kee er 16 and rest in a cavity 17 formed in the ace ofthe door casing 18.

The angular extension 14 passes in the rear of a tonguer19, while a -lug20 extends outwardly from the face of the latch 9 and engages the outerfa'ce of the tongue, thereby preventing outward swinging movement of thedoor, the latch at the same time preventingthe door` from moving bodilyVin either direction along the trackfwayfrom the fact that the width ofthe vertical portion of the slot 15 is such as to snugly receive thelatch 9. To permit the angular extensionlt to n l swing' into or` out ofthe slot 15, the inner face of the tongue 19 is curved, while theangular extension 14 is 'similarly curved, the curvature of thetongue'and extension being concentric with the pivotal oint ofthe latch'9. The latch 9 is provide with a' standard 21, from one face ofwhichextends a plate 22, said plate being so arranged as to cover theenlarged portion of the slot `15 and thereby prevent snow, sleet and thelike from entering the cavity 17 when the latch is in engagement withthe keeper.

v The free end of the stem is threaded to receive a nut 23, said nutbeing employed for holding the latch 9 in position on the stem and if 1tis desired to seal the lock after the latch has been. engaged with thekeeper,

registering openings 24 and 25 are provided inthe latch 9 and strap 11,respectively, throu h which is to be introduced any suitable orm ofsealing device and when the lock is pro erly sealed, the same could notbe unlocke Without detection.

In operation, the door is moved longitudinally ofthe track 6 untilthestraps 7 are encountered, when the latch 9 is swung upwardly and towardthe keeper 16, the angular extension 14 entering the horizontal portionof the slot 15 and passing to the rear ofthe tongue 19, while the lug 2Oengages the forward face of the tongue. This operation extends the latchacross one end of the door and prevents movement in either direction,

while by properly seating the latch, the plate 22will cover the slot 15and prevent snow or the like from entering the cavity 17. This operationalso brings the o enings 24 and 25 in alinement with each ot er, so thatthe seal can be introduced and the parts positively locked together'.

This form of lock can be ver cheaply constructed and readily ap lied touse and when the parts of the loc are properly attached together, thedoor wil be rigidly held against movement and thereby prevent rocking ofthe same incident to the jar and movement of the car.

I claim: 1. In `a lock ofthe class described, the combination with akeeperhaving a slot therethrough and a tongue 'extending into said slot;yof a latch-having means thereon 40 ing a curved rear face; of apivotally mounted latch-having a curved angular extension adapted toenter the slot and engage the curved face of the ton ue, a lug on thelatch adapted to engage t e front face rof the tongue and a platevcarried bl the latch ada ted' to cover the 'slot in the eeper when theatch is in its locked position.

3. A lock of the class described, comprising the combination with akeeper having a slot therein and a tongue on the keeper; of a latch, astrap having a stem thereon to receive the latch, means to secure thelatch on the stem, an angular extension on the latch adapted to enterthe. slot in the keeper and engage the rear face of the tongue, a lug onthe latch adapted to engage the forward face of the tongue and a platecarried by the latch ada ted to cover the slot in the keeper when theatch is in its locked osition.

In testimony whereoiplhave signedniy name to this specification in thetwo subscribing Witnesses.

JOHN BEAM KNEEDLER.

presence of

